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Publication numberUS5878457 A
Publication typeGrant
Application numberUS 08/810,155
Publication dateMar 9, 1999
Filing dateFeb 25, 1997
Priority dateFeb 25, 1997
Fee statusPaid
Also published asDE69720282D1, DE69720282T2, EP0969758A1, EP0969758B1, WO1998036677A1
Publication number08810155, 810155, US 5878457 A, US 5878457A, US-A-5878457, US5878457 A, US5878457A
InventorsSheila F. Cox, Thomas L. Wood
Original AssigneeMinnesota Mining And Manufacturing Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Coreless lint-removing tape roll
US 5878457 A
Abstract
A linerless, coreless roll of tape includes a backing layer having an adhesive layer formed on one side. The tape is formed into a roll having a plurality of wraps with the adhesive side facing outwardly. The tape is sufficiently stiff and self-supporting to obviate the need for support material, and the entire roll, including the last wrap, is completely usable for its intended purpose without wasting any tape. As lint removal tape, the tape is used while it is still on the roll, and the tape is removed from the roll only after use, to discard it. The roll can be sufficiently compressible to create a plane of contact during use to remove lint. The roll of tape can be mounted on an applicator.
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Claims(1)
We claim:
1. A lint removal device comprising:
an applicator comprising a handle portion and a tape-receiving portion, wherein the handle portion has a free end and a connecting end; the tape-receiving portion has a free end and a connecting end wherein the handle portion connecting end is connected to the tape-receiving portion connecting end, and wherein the tape-receiving portion further comprises:
a cylindrical tape-receiving surface;
an inner lip adjacent the handle portion which extends radially beyond the tape-receiving surface; and
an outer lip adjacent the free end and which extends radially beyond the tape-receiving surface, wherein the outer lip is tapered on the side facing the free end of the tape-receiving portion, and after a roll of tape traverses over the outer lip it is locked in place on the tape-receiving surface and cannot be removed by sliding it back over the outer lip; and
a linerless, coreless roll of tape mounted on the tape-receiving portion of the applicator and comprising a backing layer having a first side and a second side, and an adhesive layer formed on the first side of the backing layer, wherein the tape is formed into a roll having a plurality of wraps with the adhesive side facing outwardly by rolling the tape on only itself, such that, when forming a roll, the tape is sufficiently stiff and self-supporting to obviate the need for support material, and such that the entire roll, including the last wrap, is completely usable for its intended purpose of lint removal without wasting any tape, wherein the linerless, coreless roll of tape is stretchable, and can be stretched over the outer lip such that once the roll is in place, the tape recovers into the tape-receiving portion to allow seating of the roll of tape.
Description
TECHNICAL FIELD

The present invention relates to tape rolls. More particularly, the present invention relates to coreless tape rolls used for lint removal.

BACKGROUND OF THE INVENTION

Most rolls of tape are used by first removing a length of tape from the roll before using the tape for its intended purpose. One use for tape while still on a roll is lint removal. Lint removal tape is used to remove lint and other small particles from fabric, such as clothing. Lint removal tape can be used in individual sheets, whether individually packaged or removed from a roll or a pad. Lint removal tape can also be used while in roll form with the tape still on the roll. The tape is removed from the roll only after use, to discard it.

In roll form, lint removal tape is typically wound on a core with the adhesive side of the tape wound outwardly for use. A roll of lint removal tape is placed on an applicator, which typically is formed of a handle portion and a tape-receiving portion. The roll is placed on the tape-receiving portion. Various forms of lint removal tape rolls are known, such as those described in U.S. Pat. No. 5,027,465 and U.S. Pat. No. 5,388,300.

Coreless rolls of tape and methods for their manufacture are known. For example, U.S. Pat. Nos. 3,770,542 and 3,899,075 disclose coreless tape rolls. The tape rolls formed, however, are linered and the liner performs the functions of a core.

U.S. Pat. No. 4,297,403 discloses another linered coreless roll of tape. In order to use this roll, the innermost portions of tape are not useable and must be discarded.

U.S. Pat. No. 3,823,887 discloses a method of winding thin tissue paper into a roll without a core. However, there is no suggestion of how such a coreless roll of thin paper could be used. Also, this roll is free of adhesive or similar substances.

Also, generally, these known coreless rolls are used by removing a portion of tape from the roll before using the tape for its intended purpose. There are no known coreless rolls of tape in which the tape is used while it is still on the roll, and the tape is removed from the roll only after use, to discard it. There is a need for a linerless, coreless roll of tape in which all of the tape is usable, the tape is used while it is still on the roll, and the tape is removed from the roll only after use, to discard it.

SUMMARY OF THE INVENTION

A linerless, coreless roll of tape includes a backing layer having a first side and a second side and an adhesive layer formed on the first side of the backing layer. The tape is formed into a roll having a plurality of wraps with the adhesive side facing outwardly by rolling the tape on only itself. When forming a roll, the tape is sufficiently stiff and self-supporting to obviate the need for support material, and the entire roll, including the last wrap, is completely usable for its intended purpose without wasting any tape.

The second side of the backing layer can include a low adhesion backside layer. Also, the tape can be perforated to permit the exterior wrap of tape to be removed.

As lint removal tape, the tape is used while it is still on the roll, and the tape is removed from the roll only after use, to discard it. The roll can be sufficiently compressible to create a plane of contact during use to remove lint.

The roll of tape can be used with an applicator which includes a handle portion and a tape-receiving portion. The last wrap of tape directly contacts the tape-receiving portion of the applicator such that when the last wrap of tape is removed, the applicator can be replenished with another roll of tape.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a roll of tape of the present invention.

FIG. 2 is a top view of a portion of tape.

FIG. 3 is a side view of the tape of FIG. 2.

FIG. 4 is a perspective view of the applicator of the present invention.

FIG. 5 is a side view of the applicator of FIG. 4.

FIG. 6 is a perspective view of the roll of tape mounted on the applicator.

DETAILED DESCRIPTION

FIGS. 1-3 shows a linerless, coreless roll 10 of lint removal tape 12. The tape itself is formed of at least two layers, a backing layer 14 and an adhesive layer 16 and can be made from any known materials. The backing layer 14 has a first side 18 and a second side 20 and can be made of, for example, paper or plastic film. Suitable paper backings include saturated flatstock and crepe. Suitable plastic film backings include polypropylene, polyethylene, copolymers of polypropylene and polyethylene, polyesters, and vinyl acetates. The polypropylene can be biaxially oriented polypropylene (BOPP) or simultaneously biaxially oriented polypropylene (SBOPP). The backing material can be compostible or degradable, can be colored, can be printed, and can be of different surface textures or embossed.

As best shown in FIG. 3, the adhesive layer 16 is formed on the first side 18 of the backing layer 14. It can be formed on the entire first side, or the backing layer can be uncoated by adhesive along one or both side edges. Alternatively, the side edges can be adhesive coated and then detackified by using waxes, lacquers, or inks for example.

The adhesive can include hotmelt-coated formulations, transfer-coated formulations, solvent-coated formulations, and latex formulations. Adhesives useful in the preparation of lint removal tape 12 according to the present invention include all pressure sensitive adhesives. Pressure sensitive adhesives are normally tacky at room temperature and can be adhered to a surface by application of, at most, light finger pressure. Examples of adhesives useful in the invention include those based on general compositions of polyacrylate; polyvinyl ether; diene-containing rubber such as natural rubber, polyisoprene, and polyisobutylene; polychloroprene; butyl rubber; butadiene-acrylonitrile polymer; thermoplastic elastomer; block copolymers such as styrene-isoprene and styrene-isoprene-styrene block copolymers, ethylene-propylene-diene polymers, and styrene-butadiene polymer; poly-alpha-olefin; amorphous polyolefin; silicone; ethylene-containing copolymer such as ethylene vinyl acetate, ethylacrylate, and ethyl methacrylate; polyurethane; polyamide; epoxy; polyvinylpyrrolidone and vinylpyrrolidone copolymers; polyesters; and mixtures of the above. Additionally, the adhesives can contain additives such as tackifiers, plasticizers, fillers, antioxidants, stabilizers, pigments, diffusing particles, curatives, and solvents.

A general description of useful pressure sensitive adhesives may be found in Encyclopedia of Polymer Science and Engineering, Vol. 13, Wiley-Interscience Publishers (New York, 1988). Additional description of useful pressure sensitive adhesives may be found in Encyclopedia of Polymer Science and Technology, Vol. 1, Interscience Publishers (New York, 1964).

The tape 12 is formed into a roll 10 having a plurality of wraps with the adhesive layer 16 facing outwardly by rolling the tape on only itself. No support material, such as a core, a liner, or any other material that could lend support and provide rigidity and strength to the roll of tape, is necessary. In the illustrated embodiments, none is used.

The roll 10 of lint removal tape can be used by placing the roll 10 on an applicator 30 (see FIGS. 4-6), which typically is formed of a handle portion 32 and a tape-receiving portion 34. The roll 10 is placed on the tape-receiving portion 34.

When forming a roll 10, the tape 12 is sufficiently firm, stiff, and self-supporting to obviate the need for support material. The entire roll 10, including the last wrap, is completely usable for its intended purpose of lint removal without wasting any tape. The last wrap of tape directly contacts the tape-receiving portion 34 of the applicator 30 such that the last wrap of tape is completely useable. The last wrap generally contacts the tape receiving portion 34 along at least one axial line but need not contact the tape receiving portion circumferentially. When the last wrap of tape is removed, the applicator 30 can be replenished with another roll 10 of tape. With the roll of tape of this invention, there is no risk that any of the tape could adhere to the applicator 30 and either impair the operation of the applicator or waste tape. Also, there is no core which must be removed before replenishing with a new roll of tape.

The coreless roll 10 of tape could also include a third layer. A low adhesion backside (LAB) layer 24 can be formed on the second side 20 of the backing layer 14 to facilitate removing the outer wrap of tape from the roll 10 after that wrap of tape has been used and is to be discarded. Suitable LAB layers include silicones, fluorochemicals, acrylates, and polyvinylacetates. Numerous other layers can be added to the tape such as primers to increase the adhesion of adhesive layer 16 to backing layer 14. Also, printed material can be located on the first side of the backing layer under the adhesive, or on the second side of the backing layer either under or over any LAB layer 24. This printed material can be advertising, instructions, or other information. Also, the tape could contain deodorants, perfumes, antistatic materials, and encapsulated cleaning chemicals. Also, the backing layer 14 can be modified such as by flame treatment, corona treatment, and roughening.

Another optional feature of the tape can be perforations 26, as shown in FIG. 2, to facilitate removing the outer wrap of tape from the roll 10 after that wrap of tape has been used and is to be discarded. The perforations 26 can be made before the tape 12 is rolled into a roll 10 or after the roll has been formed. Also, the perforations 26 on successive wraps can be located at the same or different circumferential locations on the roll 10. Alternatively, after the tape 12 is formed into a roll 10, a complete cut (not shown) can be formed through the roll to create discrete sheets and to facilitate removal of the outer wrap of tape. The complete cut could extend across the roll except for the edges or across the entire roll except for the innermost wraps.

In addition to reducing waste, the coreless feature of this invention provides a performance advantage. By eliminating any core, liner, or other backing support material, the roll is more compressible (not having any rigid support to compress). The roll is sufficiently compressible to create a plane of contact during use to remove lint. This creates a larger area on the tape to remove and receive lint. This compressibility is sufficient even when the tape is used on an applicator.

In making one embodiment of this invention, a master roll of 10 cm (4 in) wide tape has an embossed polypropylene backing, a low adhesion backside (LAB) coating on one side, and a hot melt coated adhesive coating across the other side leaving uncoated edges approximately 0.62 cm (0.25 in) wide. The master roll is formed and wound in a conventional manner. The master roll is then rewound, adhesive side out, and is optionally perforated. A vacuum pulls the tape onto a mandrel during this stage and holds it in place while the appropriate length of tape is wound with the adhesive side out and converted to a coreless roll of the proper length. A turret indexes the finished wound tape. As the turret rotates, the vacuum on the original mandrel is discontinued to allow the coreless roll of tape. A second mandrel moves into place, the vacuum connects, and the process is repeated. Additional mandrels can be used, as necessary, to facilitate continuous operation.

The invention is also a lint removal device which includes the coreless roll 10 of tape 12 and the applicator 30. As shown in FIGS. 4-6, the applicator 30 includes the handle portion 32 and the tape-receiving portion 34. Blow molding, injection molding, and other manufacturing methods can allow for a one piece construction which is simple to make and low in cost. The handle portion 32 can have any shape and can be contoured to ergodynamically fit a hand. The handle portion 32 has a free end 36 and a connecting end 38. The free end 36 can have an opening 40 to permit hanging the applicator 30 on a hook for storage.

The tape-receiving portion 34 also includes a free end 42 and a connecting end 44. The connecting end 38 of the handle portion 32 is connected to the connecting end 44 of the tape-receiving portion 34. The tape-receiving portion 34 also includes a cylindrical tape-receiving surface 46, an inner lip 48 adjacent the connecting end 44, and an outer lip 50 adjacent the free end 42. Both lips 48, 50 extend radially beyond the tape-receiving surface 46. The outer lip 50 has a tapered portion 52 on the side facing the free end 42 of the tape-receiving portion 34. The outer lip 50 can be perpendicular to the tape-receiving portion 34 on the side 54 facing the handle portion 32. After a roll 10 of tape traverses over the outer lip 50, it is locked in place on the tape-receiving surface 46 and cannot be removed by sliding it back over the outer lip 50.

Because the tape roll 10 is coreless and is stretchable, it can be stretched over the slightly oversized and tapered outer lip 50, which can optionally be compressible and flexible. Once the roll 10 is in place, the tape recovers to its original size and resides in the recessed area of the tape-receiving surface 46 (between the inner lip 48 and the outer lip 50) which is slightly oversized to allow seating of the roll 10 of tape. The inner and outer lips can have notches 56 on the inside to hold the tape roll in place so that the tape roll cannot be removed except by dispensing the total roll (or compressing the outer lip 50). The notch 56 prevents the tape roll 10 from bending upward over the outer lip 50. The notch causes the tape roll 10 to bend into the notch when forced forward the outer lip 50 and retains the tape 12. A typical roll on a fiber core could not be used in this roller design due to its inflexible core.

The applicator 30 could be used with a cored tape roll only if the core is compressible. However, the compressible core would remain on the tape-receiving portion 34 after the tape is completely dispensed. The applicator would consequently not be reusable unless the core was cut off. Combination with a coreless tape allows for easy reuse.

Various changes and modifications can be made in the invention without departing from the scope or spirit of the invention. For example, the tape can be used for purposes other than lint removal. Also, the tape-receiving surface need not be cylindrical. It could be formed of planar or curved sides meeting in edges which assist in holding the tape roll in position.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1960137 *Sep 26, 1932May 22, 1934Durkee Atwood CompanyArticle of manufacture
US2269712 *Apr 20, 1938Jan 13, 1942Minnesota Mining & MfgAdhesive sheet and method of making
US2401842 *Jan 10, 1944Jun 11, 1946Slater Charles FRotary cleaner roll and container therefor
US2624060 *May 17, 1946Jan 6, 1953Thomas R MckenzieRotary adhesive roll fabric cleaning device
US2702913 *Apr 18, 1950Mar 1, 1955Walkama Roy MAdhesive tape lint remover
US2724847 *May 12, 1952Nov 29, 1955Krasno Louis RLint removing device
US2800215 *Apr 13, 1955Jul 23, 1957Converse Products IncMethod and means for cleaning type
US3013367 *May 3, 1956Dec 19, 1961St Clair Specialty Mfg CoSystem of making coreless rolls
US3066043 *Apr 10, 1958Nov 27, 1962Kimberly Clark CoCellulosic product comprising saturated fibrous web having a coating comprising vinyl resin and alkyl acrylate-carboxylic acid plasticizer
US3201815 *Oct 28, 1964Aug 24, 1965Harold E SelbyLint remover
US3231918 *Sep 11, 1963Feb 1, 1966Marks Jerry HLint removing surface cleaner for garments
US3299461 *Dec 13, 1965Jan 24, 1967Jerry H MarksLint removing surface cleaner for garments
US3342325 *Jul 1, 1966Sep 19, 1967Dreher Donald FLint removers
US3343194 *Sep 20, 1965Sep 26, 1967Samuel RamelsonLint remover
US3346105 *Jun 18, 1962Oct 10, 1967Crown Zellerbach CorpPacking material
US3363276 *Oct 18, 1965Jan 16, 1968Frank S. Thomas Jr.Combined lint remover and fabric comber
US3389416 *Oct 28, 1966Jun 25, 1968Leon M. TimmsLint remover
US3417418 *Jul 5, 1967Dec 24, 1968LincrustaAdhesive-coated cleaning roller
US3421170 *Jun 20, 1967Jan 14, 1969Thomas Frank S JrJacketed roller-type lint remover
US3623179 *Sep 10, 1969Nov 30, 1971Roth Eric MichaelTacky roller having splined cover
US3675274 *Jun 25, 1971Jul 11, 1972Alan J FriedNapkin
US3742547 *Jul 1, 1971Jul 3, 1973Sohmer MLint sweeper
US3770542 *Aug 25, 1971Nov 6, 1973Johnson & JohnsonAdhesive tape and method
US3823887 *Dec 23, 1971Jul 16, 1974D GersteinDevice for forming lightweight paper into rolls without any core
US3899075 *May 16, 1973Aug 12, 1975Johnson & JohnsonAdhesive tape
US4297403 *Feb 6, 1980Oct 27, 1981Monarch Marking Systems, Inc.Coreless pressure sensitive label supply roll
US4361923 *Aug 6, 1981Dec 7, 1982Helmac Products CorporationLint remover
US4399579 *Aug 6, 1981Aug 23, 1983Helmac Products CorporationLint remover
US4422201 *Aug 6, 1981Dec 27, 1983Helmac Products CorporationLint remover
US4427726 *Mar 11, 1982Jan 24, 1984Gebrauchs Gerate GmbhConvoluted perforated webs-cleaning garments
US4522870 *Apr 4, 1983Jun 11, 1985Minnesota Mining And Manufacturing CompanyAdhesive is solvent-free, crosslinked alkyl acrylate polymer
US4570280 *Nov 5, 1984Feb 18, 1986Roth Eric MIntegrally molded support for adhesive roll sleeve
US4727616 *Sep 15, 1986Mar 1, 1988Ronald KuceraPick up roller
US4783015 *Jul 27, 1987Nov 8, 1988Shimizu Machinery Co., Ltd.Toilet paper roll and method of manufacture thereof
US4807825 *Mar 29, 1988Feb 28, 1989Elsner Engineering Works, Inc.Roll winding machine
US5027465 *Mar 5, 1990Jul 2, 1991Mckay Nicholas DPressure sensitive adhesive tape roll
US5388300 *Oct 14, 1993Feb 14, 1995Ggg Gebrauchs Gerate GmbhAdhesive tape roll
US5407716 *Sep 28, 1993Apr 18, 1995Minnesota Mining And Manufacturing CompanyMasking methods using flexible strip
DE8421443U1 *Jul 18, 1984Nov 14, 1985Beiersdorf Ag, 2000 Hamburg, DeTitle not available
DE8804854U1 *Apr 13, 1988May 26, 1988Wenko-Wenselaar Gmbh, 4010 Hilden, DeTitle not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6127014 *Oct 16, 1998Oct 3, 2000Helmac Products CorporationAdhesive roller construction
US6301840 *Nov 22, 1999Oct 16, 2001Sam SpinelliProtective liner assembly for a fascia board or like member
US6513457 *Jan 12, 2001Feb 4, 2003Thomas Mitchell HuddlestonCatch'em flea brush
US6698626May 10, 2002Mar 2, 2004Mckay William D.Lint remover and spray dispenser apparatus
US6735806May 11, 2001May 18, 2004Eggs In The Pipeline, LlcTacky roller for improved surface cleaning
US6763977Nov 22, 2002Jul 20, 2004Mckay William DLint remover and spray dispenser apparatus
US6865765Aug 14, 2002Mar 15, 20053M Innovative Properties CompanyContaminant removal tape assembly, a roll of contaminant removal tape, and methods of removing contaminants from a surface
US6908525 *Jun 11, 2002Jun 21, 20053M Innovative Properties CompanyApparatus for forming a roll of contaminant removal tape and methods of forming rolls of contaminant removal tape
US6954963Feb 21, 2002Oct 18, 2005The Hartz Mountain CorporationLint removal apparatus with pull tab for adhesive coated sheets
US6981291Jan 12, 2004Jan 3, 2006The Hartz Mountain CorporationMotorized cleaning apparatus
US7020926Apr 28, 2005Apr 4, 2006The Hartz Mountain CorporationLint roller/brush assembly
US7039982Dec 26, 2002May 9, 2006The Hartz Mountain CorporationLint roller/brush assembly
US7090908Feb 18, 2004Aug 15, 2006The Hartz Mountain CorporationLint tape roll with peeling feature
US7107643Nov 13, 2002Sep 19, 2006The Hartz Mountain CorporationLint brush with peel-off strips
US7186207 *Jul 31, 2003Mar 6, 2007The Evercare CompanyRoller construction for detritus removal
US7188384Nov 18, 2005Mar 13, 2007The Hartz Mountain CorporationLint removal apparatus with pull tab for adhesive coated sheets
US7225950Mar 31, 2004Jun 5, 2007The Hartz Mountain CorporationLint roll/dispensable fluid container apparatus
US7234188Sep 26, 2003Jun 26, 2007The Hartz Mountain CorporationLint removal apparatus with edge orientation
US7281288Sep 26, 2003Oct 16, 2007The Hartz Mountain CorporationCleaning apparatus with flexible connection between head and handle
US7309182Aug 31, 2004Dec 18, 2007The Hartz Mountain CorporationLiquid dispensing brush
US7364380May 21, 2004Apr 29, 2008The Hartz Mountain CorporationGrooming/cleaning apparatus
US7377001May 31, 2006May 27, 2008The Hartz Mountain CorporationGrooming/cleaning apparatus
US7395574May 23, 2007Jul 8, 2008The Hartz Mountain CorporationLint removal apparatus with edge orientation
US7715961Apr 28, 2005May 11, 2010Agnik, LlcOnboard driver, vehicle and fleet data mining
US7744975Jul 2, 2004Jun 29, 20103M Innovative Properties CompanyContaminant removal tape roll with sheet removal feature and method of manufacturing the same
US7793377Apr 13, 2006Sep 14, 2010S.C. Johnson & Son, Inc.Continuous adhesive roller
US7794832May 18, 2006Sep 14, 2010Neenah Paper, Inc.Self-releasing lint tape
US7823244Apr 15, 2005Nov 2, 2010S. C. Johnson & Son, Inc.Nubby mitt for debris removal
US7841036Jul 8, 2005Nov 30, 2010The Procter & Gamble CompanyHand-held roller device with cover for providing benefits to fabrics
US7856690Nov 22, 2006Dec 28, 20103M Innovative Properties CompanyBrushing assembly
US8015651Jun 18, 2010Sep 13, 2011S.C. Johnson & Son, Inc.Continuous adhesive roller
US8168280Mar 7, 2008May 1, 20123M Innovative Properties CompanyLint roller
US8225448Dec 3, 2010Jul 24, 20123M Innovative Properties CompanyLint roller
US8449683Dec 12, 2011May 28, 2013Marilyn S. ViceApparatus and method for picking up stickers in grassy and other areas
US8484778Sep 7, 2010Jul 16, 2013Hill-Rom Services, Inc.Side rail with two position storage feature
US8539631Jul 8, 2005Sep 24, 2013The Procter & Gamble CompanyRoller for providing benefits to fabric
US8573278Jul 2, 2009Nov 5, 2013Bambi Lyn CahillyWell plate film applicator
US8752233May 8, 2013Jun 17, 2014Marilyn S. ViceApparatus and method for picking up stickers in grassy and other areas
WO2002091901A1 *May 3, 2002Nov 21, 2002Egg Factory LlcTacky roller for improved surface cleaning
WO2005011457A2 *Jul 29, 2004Feb 10, 2005Evercare CoRoller construction for detritus removal
Classifications
U.S. Classification15/104.002, 428/906, 428/40.1, 428/43
International ClassificationA47L25/00
Cooperative ClassificationY10S428/906, A47L25/005
European ClassificationA47L25/00A
Legal Events
DateCodeEventDescription
Aug 11, 2010FPAYFee payment
Year of fee payment: 12
Sep 11, 2006FPAYFee payment
Year of fee payment: 8
Sep 25, 2002REMIMaintenance fee reminder mailed
Sep 6, 2002FPAYFee payment
Year of fee payment: 4
Feb 28, 1997ASAssignment
Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COX, SHEILA L.;WOOD, THOMAS L.;REEL/FRAME:008539/0053
Effective date: 19970225